Code cleanup some small changes in the formatting.

src/membership/admin.py

@@ -9,19 +9,26 @@ from easy_thumbnails import fields, widgets
 from membership.models import Membership, ActivationRequest
 
 
-def activate_user(modeladmin, request, queryset):  # Ignore PyLintBear (W0613)
-    """Triggers activation of the selects actication requests by hand."""
-    for activation in queryset:
-        membership = Membership.objects.get(username=activation.user.username)
-        membership.save()
-        activation.activate()
+def activate_user(modeladmin, request, queryset):
+    """Triggers activation of the selects actication requests by hand.
+
+    :param modeladmin: The ModelAdmin that triggered this action.
+    :param request: An HttpRequest representing the current request.
+    :param queryset: A QuerySet containing the objects selected by the user.
+    """
+    [activation.activate() for activation in queryset ]
 
 
 activate_user.short_description = _('Activate selected User')
 
 
 def cleanup_activation(modeladmin, request, queryset):  # Ignore PyLintBear (W0613)
-    """Delete every selected activation request that has been expired."""
+    """Delete every selected activation request that has been expired.
+
+    :param modeladmin: The ModelAdmin that triggered this action.
+    :param request: An HttpRequest representing the current request.
+    :param queryset: A QuerySet containing the objects selected by the user.
+    """
     for activation in queryset:
         if activation.expired:
             activation.user.delete()

src/membership/models.py

@@ -56,8 +56,8 @@ class ActivationManager(models.Manager):
         """Creates a PendingActivation instance with an random activation key.
         @param user: the user that requests activation.
         """
-        salt = str(user.pk * random.random()) + \
-               user.registration_date.isoformat()
+        salt = str(user.pk * random.random())
+        salt += user.registration_date.isoformat()
         activation_key = hashlib.sha1(salt.encode()).hexdigest()
         return self.create(user=user, activation_key=activation_key)